.... This inhibition was absent in the presence of amiloride. In the present study we attempted to measure the activities of intracellular Na + ([Na + ] i ) and intracellular Ca 2+ ([Ca 2+ ] i ) fluorimetrically, and discuss their role for the functional coupling of the activity of the Na + -K + pump and the recently...

...Klaus Thomsen; Michael Shalmi In potassium-depleted rats lithium is reabsorbed by an amiloride-sensitive transport mechanism in the distal nephron segments, and the urinary fractional excretion of lithium (FE Li ) is reduced by almost 50% compared to that of potassium-replete rats. We have used...

...H. Völkl; M. Paulmichl; F. Lang Both proximal renal tubule cells and cultured Madin-Darby canine kidney (MDCK) cells are capable of regulating their volume in hypotonic media. Regulatory cell volume decrease in proximal straight tubules is impaired by barium, amiloride and acetazolamide and depends...

... Hydrogen ions Bicarbonate Furosemide Amiloride Ouabain Quinidine Barium Glycolysis Renal Physiol Biochem 1988:3-5:202-220 © 1988 S. Karger AG. Basel 1011-6529/88/OI15-0202 $2.75/0 Cell Volume Regulation in Liver J. Graf\ P. Haddada, D. Haeussingerb, F. Langc Department of General...

...Lawrence G. Palmer Na-selective, amiloride-sensitive ion channels are a crucial component of the system for controlled NaCl reabsorption across tight epithelia. A kinetic model for the process of Na conduction through the channel is presented. The model is based on a view of the possible geometry...

... + following administration of amiloride (ΔFE Li ) were used as an index of distal tubular Li + reabsorption. The results revealed an absence of distal tubular Li + reabsorption in K + –replete rats (ΔFE Li = 3.6±2.4%), in contrast to K + restriction in which ΔFE Li was 24.0±2.7%. The distal tubular Li...